1640387800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:498

約数の個数: 192

約数和(自身を含む): 4325616000

約数和(自身を除く): 2685228200

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 34, 38, 40, 50, 67, 68, 76, 85, 95, 100, 134, 136, 152, 170, 190, 200, 268, 323, 335, 340, 379, 380, 425, 475, 536, 646, 670, 680, 758, 760, 850, 950, 1139, 1273, 1292, 1340, 1516, 1615, 1675, 1700, 1895, 1900, 2278, 2546, 2584, 2680, 3032, 3230, 3350, 3400, 3790, 3800, 4556, 5092, 5695, 6365, 6443, 6460, 6700, 7201, 7580, 8075, 9112, 9475, 10184, 11390, 12730, 12886, 12920, 13400, 14402, 15160, 16150, 18950, 21641, 22780, 25393, 25460, 25772, 28475, 28804, 31825, 32215, 32300, 36005, 37900, 43282, 45560, 50786, 50920, 51544, 56950, 57608, 63650, 64430, 64600, 72010, 75800, 86564, 101572, 108205, 113900, 122417, 126965, 127300, 128860, 144020, 161075, 173128, 180025, 203144, 216410, 227800, 244834, 253930, 254600, 257720, 288040, 322150, 360050, 431681, 432820, 482467, 489668, 507860, 541025, 612085, 634825, 644300, 720100, 863362, 865640, 964934, 979336, 1015720, 1082050, 1224170, 1269650, 1288600, 1440200, 1726724, 1929868, 2158405, 2164100, 2412335, 2448340, 2539300, 3060425, 3453448, 3859736, 4316810, 4328200, 4824670, 4896680, 5078600, 6120850, 8201939, 8633620, 9649340, 10792025, 12061675, 12241700, 16403878, 17267240, 19298680, 21584050, 24123350, 24483400, 32807756, 41009695, 43168100, 48246700, 65615512, 82019390, 86336200, 96493400, 164038780, 205048475, 328077560, 410096950, 820193900, 1640387800]

約数ペア:

[(1, 1640387800), (2, 820193900), (4, 410096950), (5, 328077560), (8, 205048475), (10, 164038780), (17, 96493400), (19, 86336200), (20, 82019390), (25, 65615512), (34, 48246700), (38, 43168100), (40, 41009695), (50, 32807756), (67, 24483400), (68, 24123350), (76, 21584050), (85, 19298680), (95, 17267240), (100, 16403878), (134, 12241700), (136, 12061675), (152, 10792025), (170, 9649340), (190, 8633620), (200, 8201939), (268, 6120850), (323, 5078600), (335, 4896680), (340, 4824670), (379, 4328200), (380, 4316810), (425, 3859736), (475, 3453448), (536, 3060425), (646, 2539300), (670, 2448340), (680, 2412335), (758, 2164100), (760, 2158405), (850, 1929868), (950, 1726724), (1139, 1440200), (1273, 1288600), (1292, 1269650), (1340, 1224170), (1516, 1082050), (1615, 1015720), (1675, 979336), (1700, 964934), (1895, 865640), (1900, 863362), (2278, 720100), (2546, 644300), (2584, 634825), (2680, 612085), (3032, 541025), (3230, 507860), (3350, 489668), (3400, 482467), (3790, 432820), (3800, 431681), (4556, 360050), (5092, 322150), (5695, 288040), (6365, 257720), (6443, 254600), (6460, 253930), (6700, 244834), (7201, 227800), (7580, 216410), (8075, 203144), (9112, 180025), (9475, 173128), (10184, 161075), (11390, 144020), (12730, 128860), (12886, 127300), (12920, 126965), (13400, 122417), (14402, 113900), (15160, 108205), (16150, 101572), (18950, 86564), (21641, 75800), (22780, 72010), (25393, 64600), (25460, 64430), (25772, 63650), (28475, 57608), (28804, 56950), (31825, 51544), (32215, 50920), (32300, 50786), (36005, 45560), (37900, 43282)]